WordPress自定义栏目运用实例V：为加密文章添加密码提示文字

function password_hint( $c ){ global $post, $user_ID, $user_identity; if ( empty($post->post_password) ) return $c; if ( isset($_COOKIE['wp-postpass_'.COOKIEHASH]) && stripslashes($_COOKIE['wp-postpass_'.COOKIEHASH]) == $post->post_password ) return $c; if($hint = get_post_meta($post->ID, 'password_hint', true)){ $url = get_option('siteurl').'/wp-pass.php'; if($hint) $hint = '密码提示：'.$hint; else $hint = "请输入您的密码"; if($user_ID) $hint .= sprintf('欢迎进入，您的密码是：', $user_identity, $post->post_password); $out = <<<END <form method="post" action="$url"> <p>这篇文章是受保护的文章，请输入密码继续阅读：</p> <div> <label>$hint<br/> <input type="password" name="post_password"/></label> <input type="submit" value="输入密码" name="Submit"/> </div> </form> END; return $out; }else{ return $c; } } add_filter('the_content', 'password_hint');